WFD River Waterbody Catchments Cycle 1
The 'WFD River Water body Catchments Cycle 1' dataset is a polygon Shapefile defined for the implementation of the Water Framework Directive. Catchments are defined as an area of land from which all surface run-off flows through a series of streams, rivers and, possibly, lakes to a particular point in the water course such as a river confluence. Water bodies are attributed with a unique identifier ‘EA_WB_ID' (equivalent to WB_ID in Cycle 2) so this dataset can be linked directly to other WFD data sources such as river water body catchment, physical characteristics, risk, classification and proposed objectives as well as Cycle 2 datasets. NB Not all catchments have a designated WFD river water body within them. This dataset was previously known as WFD River Waterbody Catchments. This dataset covers the layer for Cycle 1 of the Water Framework Directive. The equivalent layer for Cycle 2 is covered under WFD River Water body Catchments Cycle 2 Please note that the Environment Agency no longer provide data for water bodies in Wales - this should now available from Natural Resources Wales.
Use limitation statement
There are no public access constraints to this data. Use of this data is subject to the licence identified.
LicenceOpen Government Licence
Contains Environment Agency information © Environment Agency and/or database rights 2017.Contains Ordnance Survey data © Crown copyright and database rights 2013. Based on digital spatial data licensed from the Centre for Ecology & Hydrology, © NERC (CEH).
Dataset contains copyright material owned by CEH and Ordnance Survey. Delineation of the river catchment boundaries primarily utilised the CEH Flow Grid hydrological model run with CEH Integrated Hydrological Digital Terrain Model (IHDTM) data and from a 50m resolution CEH flow grid so as to determine water drainage into river stretches. Upstream catchment size was calculated within an ESRI GIS environment using the extension Arc Hydro.
Coordinate reference systemhttp://www.opengis.net/def/crs/EPSG/0/27700
- Latitude from: 49.943 to 55.816
- Longitude from: -6.236 to 2.072
Contact publisherDefra Data Services Forum
Dataset reference dates
01 January 2008
18 January 2011
Data and Supporting Information
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